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    <meta charset="UTF-8">
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    <title>Document</title>
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    <script>
        let zsj = 89;
        let day = zsj/24;
        let hours = zsj%24
        console.log("共"+parseInt(day)+"天"+hours+"小时");


        let hsd = 80;
        let ssd = 5/9*(hsd-32);
        console.log("华氏度："+hsd+"度");
        console.log("摄氏度："+parseInt(ssd)+"度");


        let a = 198;
        let b = 89;
        console.log(a+b,a-b,a*b,a/b,a%b)
       



    </script>
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